CTET 2 Math and Science Dec 2019 Paper

Question : 42 of 120

Marks: +1, -0

The circumference of the base of a right circular cylinder is 528 cm and its height is 2 m. What is the volume of the cylinder?
Take

(π =22/7)

Solution:

Formula Used:
Volume of cylinder

=π ×(\;\text " radius "\;)^2 ×

height
Cicumference of circle

=2 π ×

radius
Calculation:
Circumference of circle

=528 {\cm}

⇒ 2 π {\r}=528

\Rightarrow

radius

=84 {\cm}=0.84 {\m}

Volume of cylinder

=π(0.84)^2 × 2

⇒ 4.4352 {\m}^3

∴

The volume of the cylinder is

4.4352 {\m}^3

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